v13.4.2

Core Changes

• make sure server component externals only apply to files resolvable by node: #49147
• Fix link not being GC'd sometimes: #49318
• Fix issue where nextP is not replaced in searchParams: #49315
• Add typescript version to next-info: #49346
• Upgrade React to 18.3.0-canary-16d053d59-20230506: #49402
• Remove empty config warning: #49435
• app-router: add startTransition call to revalidate dispatcher: #49453
• Inline static data buffer instead of using fs read: #49323
• Revert "Temporarily disable app dir export integration test": #49311
• Add link to Server Actions docs.: #49384
• Replace metadata clone with custom handler in dev: #49343
• Add request-async-storage to the shared layer: #49470
• Fix revalidate: false detection in app: #49473
• Fix metadata image route encoding: #49482
• Fix actions redirect handling: #49483
• Restrict useOptimistic and useFormStatus APIs on the server layer: #49331
• Fix external rewrite with body: #49487
• fix: better error message with an invalid assetPrefix: #49403
• Fix Node Crypto polyfill: #49288
• Fix: Router.query contains _next when using middleware with dynamic routes: #48753
• type: update React.CSSProperties type to Record: #49186
• Fix server CSS imports and HMR not working properly in specific conditions: #49462
• Fix HMR support for server layer imported SASS and SCSS: #49534
• Support .bind syntax with Action functions: #49422
• ci(test): enable turbopack test: #49466
• feat(next-core): relay transform plugin: #48899
• Fix canonical url for dynamic routes: #49512
• Add experimental compile/generate handling: #49491
• chore: cross-platform rm -rf script: #49529
• refactor(next-core): remove ast cloning in custom transform: #49560
• fix: a11y issues in react-dev-overlay: #49460
• Add tests for HMR: #49206
• Add stub Route type for typedRoutes: #48099
• Add test for appdir referenced images: #49242
• feat: Allow trace-level logging for non-published release builds: #49564
• Fix unexpected object mutation while resolving Open Graph: #49514
• actions: forward fetch rejections to the action handler: #49577
• actions: make cookies.set revalidate: #49582
• interception route: fix route groups breaking the referrer computation: #49602
• Allow export decl with any init value in the actions compiler: #49600
• Handle unstable_cache in pages: #49624
• Update cache method handling during build: #49633
• Fix fetchCache and no-store handling: #49638
• interception routes: fix rewrites order: #49615
• Ensure initialHeaders are normalized: #49643
• app-router: add support for parallel routes in useParams: #49595
• Add puppeteer to external packages list: #49597
• Add playwright to external package list: #49649
• actions: fill prefetchCache with revalidation payload: #49576
• Rename Turbopack/tasks crates to common prefixes: #49446
• chore(jest): Simplify isServer expression: #48330
• Add missing config vars into Webpack cache key: #49663
• misc: Apply PR comments from #49206: #49647
• fix: Standalone node http server starts accepting requests before next handler is ready: #49548
• Update links from beta to stable docs.: #49349

Documentation Changes

• Fix error message about preconnect 📝: #40360
• [docs] Add iOS hydration mismatch details to error page: #43584
• Add note about custom distDir to standalone build docs: #48592
• Add --use-yarn flag to create-next-app: #49407

Misc Changes

• Add test case for client sourcemaps: #49308
• Update start release workflow inputs: #49492
• Fix failing actions e2e deploy test: #49497
• Replace var with const: #49379
• test: pages react version with react hook in deployment: #48907
• Add test case for #49235: #49488
• chore: fix flaky middleware matcher test: #49555
• Avoid skipping the required Test Codemods job: #49589
• Update flakey app-actions deploy tests: #49667

Credits

Huge thanks to @shuding, @ijjk, @ForsakenHarmony, @timneutkens, @huozhi, @sanjaiyan-dev, @acdlite, @feedthejim, @styfle, @leerob, @koba04, @g12i, @cesarkohl, @darshkpatel, @josh, @li-jia-nan, @kwonoj, @gabschne, @alexkirsz, @karlhorky, @jridgewell, @sokra, @kdy1, @akd-io, @runjuu, @jocarrd, @nnnnoel, and @ferdingler for helping!